void PlayMedia(const char *pszFileName) throw(_com_error)
{
HRESULT hr;
IGraphBuilderPtr pGraphBuilder;
IMediaControlPtr pMediaControl;
IMediaEventPtr pMediaEvent;
WCHAR wszFileName[MAX_PATH];
LONG lEventCode;
CoInitializeEx(NULL, COINIT_MULTITHREADED);
pGraphBuilder.CreateInstance(CLSID_FilterGraph, NULL, CLSCTX_INPROC);
wsprintfW(wszFileName, L"%S", pszFileName);
hr = pGraphBuilder->RenderFile(wszFileName, NULL);
if (!SUCCEEDED(hr))
_com_raise_error(hr);
pMediaControl = pGraphBuilder;
pMediaEvent = pGraphBuilder;
hr = pMediaControl->Run();
if (!SUCCEEDED(hr))
_com_raise_error(hr);
hr = pMediaEvent->WaitForCompletion(INFINITE, &lEventCode);
if (!SUCCEEDED(hr))
_com_raise_error(hr);
}
int wmain(int argc, wchar_t* argv[])
{
using namespace dshow;
using namespace std;
if (!ParseCommandlineParameters(argc, argv))
{
return 1;
}
try
{
IGraphBuilderPtr graphBuilder;
HRESULT hr = graphBuilder.CreateInstance(CLSID_FilterGraph);
ThrowIfError(hr, "ERROR: could not create filter graph object");
IFilterGraphPtr filterGraph = graphBuilder;
// Add a renderer, which will be replaced by the encoder
IBaseFilterPtr directSound;
hr = directSound.CreateInstance(CLSID_DSoundRender);
ThrowIfError(hr, "ERROR: could not create direct sound renderer");
filterGraph->AddFilter(directSound, L"Direct Sound Renderer");
// Render the audio source file using intelligent connect
hr = graphBuilder->raw_RenderFile(const_cast<wchar_t*>(g_options.sourceFile.c_str()), 0);
ThrowIfError(hr, "ERROR: could not render the file");
// Get the audio decoder output pin
IPinPtr directSoundRendererInput = FindPin(directSound, dshow::PINDIR_INPUT);
IPinPtr audioRendererPin;
hr = directSoundRendererInput->raw_ConnectedTo(&audioRendererPin);
ThrowIfError(hr, "ERROR: could not get audio renderer output pin");
// Remove the DirectSound renderer
audioRendererPin->Disconnect();
filterGraph->RemoveFilter(directSound);
// Add the Vorbis Encoder
IBaseFilterPtr vorbisEncoder;
hr = vorbisEncoder.CreateInstance(CLSID_VorbisEncoder);
ThrowIfError(hr, "ERROR: could not create vorbis encoder object");
filterGraph->AddFilter(vorbisEncoder, L"Vorbis Encoder");
// Connect the audio decoder to the Vorbis Encoder
IPinPtr vorbisEncoderInput = FindPin(vorbisEncoder, dshow::PINDIR_INPUT);
hr = filterGraph->raw_ConnectDirect(audioRendererPin, vorbisEncoderInput, 0);
ThrowIfError(hr, "ERROR: could not connect audio renderer to vorbis encoder");
// Add the Ogg Mux Filter
IBaseFilterPtr oggMuxer;
hr = oggMuxer.CreateInstance(CLSID_OggMuxFilter);
ThrowIfError(hr, "ERROR: could not create ogg mux object");
filterGraph->AddFilter(oggMuxer, L"Ogg Muxer");
// Connect the Vorbis Encoder to Ogg Muxer
IPinPtr vorbisEncoderOutput = FindPin(vorbisEncoder, dshow::PINDIR_OUTPUT);
IPinPtr oggMuxerInput = FindPin(oggMuxer, dshow::PINDIR_INPUT);
hr = filterGraph->raw_ConnectDirect(vorbisEncoderOutput, oggMuxerInput, 0);
ThrowIfError(hr, "ERROR: could not connect vorbis encoder to ogg muxer");
// Get the encoder settings object
IVorbisEncodeSettingsPtr encodeSettings = vorbisEncoder;
// Set the name of the Ogg file
IFileSinkFilterPtr oggSource = oggMuxer;
hr = oggSource->SetFileName(g_options.oggFile.c_str(), 0);
ThrowIfError(hr, "ERROR: could not set ogg muxer file");
// Get the progress from the Ogg Muxer
IOggMuxProgressPtr oggMuxProgress = oggMuxer;
REFERENCE_TIME audioSourceDuration = GetAudioSourceDuration(g_options.sourceFile);
wcout << L"Encoding \"" << g_options.sourceFile.c_str() << L"\" to" << endl;
wcout << L"\t \"" << g_options.oggFile.c_str() << L"\"" << endl;
if (g_options.bitrate != 0)
{
wcout << L"WARNING: oggcodecs build version <= 0.81.15562 do not work correctly!" << endl;
wcout << L"WARNING: at the end of the encoding, the average bitrate does not" << endl;
wcout << L"WARNING: have the expected value." << endl;
encodeSettings->setBitrateQualityMode(g_options.bitrate);
}
else if (g_options.managedMinBitrate != 0 && g_options.managedMaxBitrate != 0)
{
wcout << L"using bitrate management (min " << g_options.managedMinBitrate << L" kbps, ";
wcout << L"max " << g_options.managedMaxBitrate << L" kbps)" << endl;
encodeSettings->setManaged(g_options.bitrate, g_options.managedMinBitrate,
g_options.managedMaxBitrate);
}
else
{
wcout << L"at quality " << fixed << setprecision(1) << g_options.quality << endl;
encodeSettings->setQuality(static_cast<int>(g_options.quality * 10));
}
unsigned long startTime = timeGetTime();
// Start the encoding
IMediaControlPtr control = graphBuilder;
control->Run();
LONGLONG destinationFileSize;
bool isEncoding = true;
while (isEncoding)
{
LONGLONG muxerProgressTime = oggMuxProgress->getProgressTime();
destinationFileSize = oggMuxProgress->getBytesWritten();
// Give a margin of 10 nanoseconds
if (muxerProgressTime >= audioSourceDuration - 10)
{
muxerProgressTime = audioSourceDuration;
control->Stop();
isEncoding = false;
}
else
{
// Sleep 50 milliseconds
Sleep(50);
}
unsigned long currentTime = ::timeGetTime();
PrintProgress(muxerProgressTime, audioSourceDuration, (currentTime - startTime) * 10000);
}
unsigned long endTime = timeGetTime();
PrintStatistics(g_options.oggFile, audioSourceDuration, (endTime - startTime) * 10000, destinationFileSize);
}
catch(const std::runtime_error& err)
{
wcout << err.what() << endl;
}
catch(const _com_error& err)
{
wcout << L"Error code: 0x" << hex << err.Error() << L"(" << err.ErrorMessage() << L")" << endl;
}
catch (...)
{
wcout << "Unknown exception!";
}
return 0;
}
